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Finding the Fourth Proportional to 303,046.80, 418,168.08 and 173,978.16

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Solution

The fourth proportional to 303,046.80, 418,168.08 and 173,978.16 is: 240,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,046.80 : 418,168.08 = 173,978.16 : x
  2. Step 2: Convert to fraction form
    303,046.80/418,168.08 = 173,978.16/x
  3. Step 3: Cross multiply
    303,046.80x = 418,168.08 × 173,978.16
  4. Step 4: Simplify right side
    303,046.80x = 72,752,113,129.13
  5. Step 5: Solve for x
    x = 72,752,113,129.13/303,046.80
  6. Step 6: Final answer
    x = 240,068.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.